What is the difference between an industrial computer and a microcontroller?
One. Features of industrial computer:
1, compatibility
Can use ISA, PCI and PICMG resources at the same time, and support various operating systems, multi-language assembly, and multi-task operating systems.
2, real-time
The industrial computer controls and monitors the production process in real time, so it must respond to changes in various parameters of the controlled object in real time. When there is deviation or failure of process parameters, the industrial control machine can respond in time, and can alarm and deal with it in real time.
3, environmental adaptability
The industrial site environment is complex and the electromagnetic interference is serious. It requires strong adaptability to the environment of the industrial computer, such as meeting the requirements of wide temperature; it has the ability to prevent dust, moisture, vibration, and radiation; it has good electromagnetic compatibility and high anti-interference ability, etc. .
4, reliability
Industrial computer is usually used to control the uninterrupted production process, once a failure occurs, it will cause a quality accident. Therefore, the industrial computer is required to have high reliability, to ensure that the average trouble-free working time reaches tens of thousands of hours, and to shorten the fault repair time as much as possible to achieve higher operating efficiency.
5. Scalability
The industrial computer adopts the baseboard + CPU card structure, so it has strong input and output functions, and can be expanded with multiple boards. It can interact with various peripherals, boards and track controllers, video monitoring systems, and vehicle detectors in the industrial field. Wait to be connected to complete various tasks.
Second, the characteristics of the microcontroller:
1, maintainability
Once the single-chip microcomputer fails, it is difficult to diagnose the faulty component. The simple method is to replace the entire system, which increases the maintenance cost.
2, scalability
Because the circuit of the single-chip microcomputer is specially designed according to certain functional requirements, the circuit must be redesigned to add a function, and the corresponding program must be redesigned. In this way, the development cost and cycle of adding functions will increase.
3, reliability
Due to the large difference in the quality of domestic single-chip microcomputers and the large discreteness of the parameters of other peripheral components, it is impossible for products with small batches to be processed by techniques such as screening and matching. Therefore, it is difficult for such products to achieve good consistency and consistency. High reliability, because the parameters of any component deviate from the design requirements, which will cause system instability.
